Anti-D <0.1 IU/mL
Transcription
Anti-D <0.1 IU/mL
In vitro diagnostic medical device Consult instructions for use ALBAcheck® - BGS Harmful Anti-D <0.1 IU/mL Manufacturer For Sensitivity Control of the Anti-Human Globulin Test Product Code INTENDED PURPOSE ALBAcheck-BGS Anti-D (<0.1 IU/mL) is intended for use as a sensitivity control of the indirect anti-human globulin test. REAGENT DESCRIPTION Described in 1945 by Coombs, Mourant and Race, the Coombs, or anti-human globulin technique, remains one of the most important and widely used techniques in blood group serology. A multiplicity of variables can affect the outcome of antiglobulin tests and consequently it is good laboratory practice to employ a procedure which can be used to indicate the sensitivity and limitations of a test system. This Anti-D (0<0.1IU/mL) can be used to evaluate the sensitivity of the indirect anti-human globulin test procedure performed in the laboratory. This reagent has been standardised for use by the techniques described below and therefore its suitability for use in other techniques cannot be guaranteed. ADDITIONAL MATERIALS AND REAGENTS REQUIRED Z262 ALBAcheck®-BGS is a registered trademark for a group of products manufactured by Alba Bioscience for use as controls in blood group serology tests. TEST PROCEDURES General Information Human Polyclonal / Indirect Agglutinin INTRODUCTION FOR HBsAg, ANTI-HIV 1/2 AND ANTI-HCV. NO KNOWN TEST METHODS CAN OFFER ASSURANCE THAT PRODUCTS DERIVED FROM HUMAN BLOOD WILL NOT TRANSMIT INFECTIOUS DISEASE. APPROPRIATE CARE SHOULD BE TAKEN IN THE USE AND DISPOSAL OF THIS PRODUCT. This reagent is for in vitro professional use only. This reagent has been prepared from plasma collected from blood donors. Each individual donation contains IgG anti-D of less than 10 IU/mL. Some donations may contain IgG antibodies other than anti-D as minor contaminants. Conversion to serum was achieved by the addition of calcium chloride. Excess calcium was removed by the addition of sodium oxalate. The formulation also contains 0.1% (w/v) sodium azide. The volume delivered by the reagent dropper bottle is approximately 40 µL; bearing this in mind, care should be taken to ensure that appropriate serum:cell ratios are maintained in all test systems. This reagent complies with the requirements of Directive 98/79/EC on in vitro Diagnostic Medical Devices and the recommendations contained in the Guidelines for Blood Transfusion Services in the United Kingdom. STORAGE CONDITIONS The reagent should be stored at 2–8 °C. Do not use if turbid. Do not dilute. The reagent is stable until the expiry date stated on the product label. INTERPRETATION OF LABEL SYMBOLS PBS pH 7.0 0.2 LISS R1r reagent red cells Polyspecific Anti-Human Globulin / Anti-Human IgG 10 x 75 mm or 12 x 75 mm glass test tubes Pipettes Centrifuge RECOMMENDED TECHNIQUES LISS, 37°C Indirect Antiglobulin Add 2 volumes of blood grouping reagent to a glass test tube. Add 2 volumes of 1.5-2% LISS suspended cells. Mix the test well and incubate for 15 minutes at 37 °C. Wash the test 4 times with a large excess of PBS pH 7.0±0.2 (e.g. 4 mL of PBS per 12 x 75 mm tube). NOTE: (i) allow adequate spin time to sediment the red cells. (ii) ensure that most of the residual saline is removed at the end of each wash to leave a ‘dry’ cell button. Add two drops of anti-human globulin reagent to each tube. Mix thoroughly. Centrifuge at 1000 g for 10 seconds or at a suitable alternative g force and time. Gently shake the tube to dislodge the cell button from the bottom and observe macroscopically for agglutination. PRECAUTIONS FOR USE AND DISPOSAL NIS, 37°C Indirect Antiglobulin Batch code Use by (YYYY-MM-DD) Storage temperature limitation (2– 8 °C) This reagent contains 0.1% (w/v) sodium azide (EC No.247852-1) and is classified as harmful. R22 - Harmful if swallowed. Sodium azide may react with lead and copper plumbing to form explosive compounds. If discarded into sink, flush with a large volume of water to prevent azide build-up. CAUTION: SOURCE MATERIAL FROM WHICH THIS PRODUCT IS DERIVED WAS FOUND NON-REACTIVE Add 2 volumes of blood grouping reagent to a glass test tube. Add 1 volume of 2-3% NIS suspended red cells. Mix the test well and incubate for 45 minutes at 37 °C. Wash the test 4 times with a large excess of PBS pH 7.0±0.2 (e.g. 4 mL of PBS per 12 x 75 mm tube). NOTE: (i) allow adequate spin time to sediment the red cells. (ii) ensure that most of the residual saline is removed at the end of each wash to leave a ‘dry’ cell button. Add two drops of anti-human globulin reagent to each tube. Mix thoroughly. Centrifuge at 1000 g for 10 seconds or at a suitable alternative g force and time. Gently shake the tube to dislodge the cell button from the bottom and observe macroscopically for agglutination. ID Micro Typing System Additional Materials and Reagents Required ID card "LISS/Coombs” ID Diluent 2 - modified LISS ID centrifuge ID Dispenser ID Pipettor ID Pipettor tips Tubes for cell suspensions ID working table ID incubator Test Procedure Prepare cell suspension - 12.5 µL packed cells + 1.0 mL ID Diluent 2. Add 50 µL cells to the appropriate microtubes. Add 25 µL of the Anti-D control to each microtube. Incubate for 15 minutes at 37 oC in the ID incubator. Centrifuge in the ID centrifuge for 10 minutes. Read reactions. INTERPRETATION OF RESULTS Agglutination No agglutination = = positive test result negative test result QUALITY CONTROL This is a quality control reagent and its satisfactory performance when used by the recommended techniques represents an adequate level of control. R1r samples will exhibit variable degrees of RhD antigen expression. Driblocks and waterbaths promote better heat transfer and are recommended for 37 °C tests, particularly where the incubation period is 30 minutes or less. Tube tests should be read by a ‘tip and roll’ procedure. Excessive agitation may disrupt weak agglutination and produce false negative results. In tube tests it is important to use the recommended g force during centrifugation as excessive centrifugation can lead to difficulty in resuspending the cell button, while inadequate centrifugation may result in agglutinates that are easily dispersed. Improper techniques may invalidate the results obtained with this product. False positive or false negative results can occur due to contamination of test materials, improper reaction temperature, improper storage of materials and omission of test reagents. SPECIFIC PERFORMANCE CHARACTERISTICS Additional Materials and Reagents Required Anti-IgG,-C3 cards Ortho BLISS Ortho BioVue Centrifuge Ortho BioVue Incubator Ortho BioVue Pipette Ortho BioVue Pipette tips Ortho BioVue workstation Tubes for cell suspension Test Procedure Prepare cell suspension – 10 µL packed cells + 0.8 mL BLISS. Add 40 µL of test cells to appropriate microtubes. Add 40 µL Anti-D control to each microtube. Incubate for 15 minutes at 37 °C in Ortho BioVue incubator. Centrifuge in Ortho BioVue centrifuge for 5 minutes. Read reactions. Tel No: Fax No: E-Mail: +44 (0) 131 658 5700 +44 (0) 131 672 3026 customer.serviceEU@quotientbd.com PERFORMANCE LIMITATIONS Ortho BioVue® System Alba Bioscience Ellen’s Glen Road Edinburgh Scotland, UK EH17 7QT THIS REAGENT SHOULD ONLY BE USED IN THE APPLICATIONS DESCRIBED AND IS NOT SUITABLE FOR RhD GROUPING. DATE OF ISSUE 20 March 2015 For further information or advice please contact your local distributor. Alba Bioscience 2015 Z262PI/04